Performance Evaluation of Data Base Systems |
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Page 55
... modeler but are produced indirectly via definitions of the appropriate information system components . It is the interaction of these components over simulated time that causes ... allows the modeler to combine Underlying Methodologies 55.
... modeler but are produced indirectly via definitions of the appropriate information system components . It is the interaction of these components over simulated time that causes ... allows the modeler to combine Underlying Methodologies 55.
Page 56
Patrick M. K. Wong. attribute is referenced . IPSS allows the modeler to combine FORTRAN code and special IPSS statements and functions to define dynamic resource attributes . Static procedures are generally associated with hardware ...
Patrick M. K. Wong. attribute is referenced . IPSS allows the modeler to combine FORTRAN code and special IPSS statements and functions to define dynamic resource attributes . Static procedures are generally associated with hardware ...
Page 83
... allows the modeler to characterize the informa- tion content of the data base . The information structure is represented by a set of distribution functions that specify the occurrences of attributes and values . That is , the ...
... allows the modeler to characterize the informa- tion content of the data base . The information structure is represented by a set of distribution functions that specify the occurrences of attributes and values . That is , the ...
Contents
Acknowledgments χν | 1 |
Information System Analysis | 19 |
Underlying Methodologies | 29 |
Copyright | |
4 other sections not shown
Common terms and phrases
200 REC NUMBER ACTIVE QUERY STATISTICS Boolean expressions CALL characterize CREATE QUERY data base workload Data Manipulation Language DBMS defined DESTROY QUERY ELM-OF ERROR EXIT evaluation example execution FIND LIST LENGTH FIND NEXT RECORD FORTRAN given attribute INDEX INDEX=1 INFORMATION PROCESSING SYSTEM information structure information system INPUT STREAM LISTING INTEGER INTER-RECORD DISTANCE INTERVAL INTERVAL CLASS IPSS Source IPSS/REL level transformation logical data base logical record methodology number of occurrences number of records objects occurrence PDF parameters POST SIMULATION STATISTICS procedure PROCESSING SYSTEM SIMULATOR Propositional Calculus QUERY DEF QUERY ID query transformation random variable record address record numbers records that contain relational calculus relational data model relational extensions retrieval efficiency satisfied query search key secondary storage SIMULATOR STANDARD INPUT specified STANDARD INPUT STREAM stochastic process STOP SIMULATION system loading system performance SYSTEM SIMULATOR STANDARD system's data base total number tuple user queries user requests user workload value-1 value-2